{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["machanical property", "enabling technology", "material", "process characterization", "manufacturing standard", "engineering feature"], "input": "It has been shown that the weld bead geometry can be controlled by the spatial and temporal distribution of laser energy on the surface of workpiece , such as power density , interaction time and energy density ."}
{"machanical property": ["density"], "enabling technology": [], "material": ["as", "be"], "process characterization": [], "manufacturing standard": [], "engineering feature": []}